Título

Two-dimensional carbon nanostructures obtained by laser ablation in liquid: effect of an ultrasonic field

Autor

LUIS ESCOBAR ALARCON

MANUEL EDUARDO ESPINOSA PESQUEIRA

Dora Alicia Solís Casados

Mónica Martínez Orts

EMMANUEL HARO PONIATOWSKI

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Materias

graphene - ([9783319734767]) laser ablation - ([9783319734767]) BIOLOGÍA Y QUÍMICA - (CTI)

Resumen o descripción

en este articulo se detallan procedimientos de síntesis de materiales novedosos obtenidos por ablación láser

The ablation of a carbon target immersed in deionized water, in absence and in presence of ultrasonic waves is reported, and the differences investigated. The obtained nanostructures are characterized by transmission electron microscopy, Raman spectroscopy and photoluminescence. Transmission electron images reveal that the produced carbon nanostructures, with and without ultrasonic excitation, are graphene-like sheets with improved quality in the first case. Samples prepared with ultrasounds show graphene layers with large sizes (several microns) and regular shapes, whereas the samples prepared without ultrasounds show smaller sizes and irregular shapes; additionally, some dispersed quasi-spherical nanoparticles are observed in the samples prepared without ultrasound. Photoluminescence measurements of the obtained nanostructures reveal emission in the blue spectral region.

conacyt

Editor

Applied Physics A

Fecha de publicación

30 de octubre de 2019

Tipo de publicación

Artículo

Recurso de información

http://hdl.handle.net/20.500.11799/99481

Fuente

9783319734767

Idioma

Inglés

Audiencia

Estudiantes

Investigadores

Repositorio Orígen

REPOSITORIO INSTITUCIONAL DE LA UAEM

Descargas

95